symmetrical components

In three-phase power systems, imbalance is caused by faults, uneven loads or equipment problems Question caused. Symmetric component method analysis: positive sequence indicates normal operation, three-phase Equal amplitude and mutual difference of 120 ° rotate in the same direction; Negative sequence triple equal amplitude counter-rotation, It is caused by asymmetric fault, causing the equipment to heat up; Zero sequence three identical phases, Common in ground faults, affecting protection and safety.

Arc Flash Detection System

The arc detection system mainly consists of an arc monitoring unit, a control unit, an optical detector .It consists of a detector, a current detector and a current transformer. Control unit receive .High sensitivity optical signal and current signal, quickly and reliably judge whether to trigger Circuit breaker. Optical fiber has high-speed transmission and anti-electromagnetic interference characteristics, which is reasonable . Imagine signal transmission medium. Light sensor collects arc through bare fiber loop Light is transmitted to the receiver through the optical fiber and converted into an electrical signal to inform the control system System to achieve instant response.

Protection Relay can be adjusted to 100V or 400V

The multifunctional protection relay can adapt to 100V or 400V according to the site. It is convenient to adjust it.

When device no power, get the configuration process

when the device no power, we only put the usb in the front, run the HSPC software, it is easy and convinent.

HSR Program upgrade demonstration

Program upgrade demonstration

Relay testing

50 trip

Configure jumpers of HSR146

HSR146 is a flexible set of protection relay. It can set the power supply voltage to 48V,110V and 220V.

Smart key cabinet

The key management system has a well-thought-out design。The appearance of the case and its minimum depth allows it to harmoniously fit into the modern office space. The key management system has enhanced control capabilities

Protective relay,Powerful functions, simple operation, friendly interface

Powerful functions, simple operation, friendly interface

Comprehensive protection relay

HSR-811 comprehensive protection device is suitable for the protection, measurement and control of lines, transformers, capacitors and bus connectors with voltage levels of 35KV and below. It can be installed locally in switchgear or centrally in panels, and provides communication interfaces. Together with other protection and automation equipment, an automation system is formed through communication interfaces.